18803967

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{68879}}^1$

素因数の和:68902

約数の個数: 16

約数和(自身を含む): 30858240

約数和(自身を除く): 12054273

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 68879, 206637, 482153, 895427, 1446459, 2686281, 6267989, 18803967]

約数ペア:

[(1, 18803967), (3, 6267989), (7, 2686281), (13, 1446459), (21, 895427), (39, 482153), (91, 206637), (273, 68879)]